Rotary explosion-engine.



G. 1001mm. ROTARY EXPLOSION ENGINE.

APPLIOATION FILED OCT. 30, 1911.

Patented July 23, 1912.

3 SHEETS-SHEET 1.

'G. IOCHUM. ROTARY EXPLOSION ENGINE.

. APPLICIATION FILED OUT. 30, 1911. 1,033,701. I Patented July 23,1912.

3 SHEETS-SHEET 2.

G. IOGHUM. ROTARY EXPLOSION ENGINE.

APPLICATION FILED OCT. 30, 1911.

Patented July 23 1912.

3 SHEETS-SHEET 3.

3f wowvtm' unrrEDs'iiATEs PATENT ora ion.

GABRIEL IOCHUM, or rAaIs, FRANCE, ASSIGNOR OlF-ONE-I-IALIE TO LEON."rosnrn GUITARD, or rams, FRANCE.

, nornnx EXPLOSION-ENGINE.

Specification of Letters Patent.

Patented. July 23, 1912.

To all whom it, may concern:

Be it known that I, GABnmL'IocHUM, a

. citizen of the Republic of France, residing at 34 Rue des Mart-yrs,Paris,' France, have invented new and useful Improvements in RotaryExplosion-Engines, of which the following is a specification.

This invention relates 'to a rotary re-' versible, valveless explosionengine of an extremely light construction having a plurality of compoundcylinders arranged with their axes parallel to the axis of rotation.

In thGJIHOtOI' according to my invention the central shaft is fixed andaboutthis shaft revolve a number of cylinders in which pairs of pistonsreciprocate. Suction and explosion take place 1n the middle bf thelength of the cylinders between the pis tons, while exhaust takes placethrough ports which are opened at the end of the stroke of the pistonsat the'two extremities of each cylinder. The two pistons working in eachcylinder move simultaneously in op posi-te directions, that is, eitherfrom the center of the cylinder toward its ends, thus moving awayfromeachother during one stroke, or from each end of the cylinder towardthe center thereby approaching each other during the next stroke. Thenumber of cylinders can be varied according to circumstances.

so The accompanying drawings represent???" way of example,a'motorconstructed accor ing to my invention having-eight compoundcylinders hating double pistons.

. Figure 1 is a side elevation, partly in sectioh along the axis of themotor. Fig.2 is an end elevation, partly in section along the linearwandm pai't along line w-w, Fig. '1. Fig. 3 is a cross-section partlyalong line y-y and partly along 2-2 Fig. 1. Fig. 4 represents a detail,in section along line a e, Fig. 2, of the valves ofthe oil a representsthe central fixed shaft of the nwtor, each end of which is, intended tobe heldby a suitable support according to the purpose for which the.motor is intended, which latter rests only upon the ends of said shaft.On the shaft a are keyedat 6 two bevel wheels I), each of which is heldfast by a collar 6 which abuts against a shoulder on the shaft in ordertoavoid any displace- 5 Tnfieit. Bevel wheels 0 roll upon each of theshaft (1 equal to the number of cylinders.

These arms 0? are strengthened by cross bars d Z which serve as bracketsfor the stub shafts of the bevel-wheels 0. The shafts a form part of thecrank arms 0 each of which drives the corresponding bevel wheel 0 bymeans of an eccentric boss 0 on which. the bevel wheel is mounted. Thetwo frames d are connected together by stays d having shoulders (Figs. 2and 3) which hold the two frames d at a fixed distance apart, andpenetrate at each end with a slight amount of friction in their bearingsup to the levelof the teeth of the bevel wheels I). In order to avoiddisplacement of the satellites 0 either under the force transmittedorunder the action of centrifugal force, shafts. 0 are. held in positionon the stays (Z by means of abutments c -having ball bearings held inplace by ringsc in two parts and fixed on the shafts c, by meansofgrooves 0 formed in the latter and in whichengage the said rings. i

The crank-arms 0 are connected by rods 6 to pistons e working in pairsin the-cylinders f in which the two pistons of each pair reciprocate inopposite directions, that is, in

eacacylinder the two pistons move simultaneously either toward or awayfrom. each other. Each of the cylinders f engages' by means of its twoends, wit-h a bearing formed in the end plates cl" of the framed,

and is provided at the center. with a tapped boss f (Fig. 3) for thignition plug, as well as with a pipe f through which the. explosivemixture is sucked into the cyl1nder between the two pistons. The pipes 3of all the cylinders are held by means of screwed sleeves f in a drum 1with wh ch they formone piece. This drum conslsts' of two flanges heldtogether by bolts f Fig. 3) and inc'loses, by means of the shoul er 9 ahollow drum 9 mounted on the central.

shaft a.- The drum' turns with-a certain 105 amount of friction on theshoulder g and bears against'the packing leathers g, 9",

thus making a tight joint.

The ends of the radii of theframe (Z engage with the heads h, whichreceive the ends of the frame in grooves 72, The heads h extend beyondthe ends of the cylinders grooves 2' the radii of the frame (Z and are,

firmly fixed to each of these radii by means of a kind of circular key21 which latter, after the member 2' is placed in position, ismanipulated by means of a key introduced through the aperture 2' thesand key forming a pinion corresponding to the gearing of a rack fixedto or formed on the rim ofthe circular key 2' I The engine casingcomprises two closed end sections One of the casing sections, or ifdesired, both of these casing sections are provided each with a sprocketwheel, pulley or toothed wheel j which can either be in one piecetherewith or can be fixed thereto in any suitable manner so as torevolve about the shaft a on' a bush j and to transmit motion from themotor to the machine to be driven.

In themotor shown in the drawing as an example, as the bevel wheel 12 isof a diameter equal to four times that of the satellite wheels 0, theconsequence is that for one revolution ettected by one of these latteraround the large wheel 6 it will turnfour.

times about its own axis, and that each cylinder f will therefore, foreach revolution'of the entire motor about the fixed shaft a, give aneffect equal to twice that of the fourstroke cycle of anordinaryexplosion engine.

In consequence the suction period of each cylinder f will correspond toone eighth of the circumference. In order to provide for I the suctionof the explosive mixture through shaft or which serves as a feed pip,and sup-' pipe f the shoulder g of the drum 9 must have two apertures gdiametrlcally'opposite each other and eacH- dorres ondin' to Each o thesuitable manner so asto advance or retard the ignition. A contact m isfixed for eacli cylinder f in a circular ebonite framem at- 1 .tached tothe flange of the drum f and consequently turns-therewith. This contaetis connected to the ignition plug of the corre- I while the drum 9remains, while-the engine is running, fixed on the shaft; a through thehollow interior of which the-gas or explosive mixture coming. from thecarbureter is fed througlrthe apertures a The-carbureter (not shown) isfixed on the left hand end (Fig. l) of the hollow plies gas tothecylinders f, under t o control of a speed regulator 7c. Thelatteractuates a distributing valve 70 the rod of wh ch is constantlyurged toward the right (F g. 1) by a spring 70 This s ring can beadJusted at will by means of t e bearlng 7n sliding along a screwed rodis", passing through a boss is. The rod in terminates a square 7:1adapted to receive an ad uStmg key by means of which the rod can berotated so asto increase or diminish the tension of the spring. Theovernor It acts upon the valve 70 against t e action of the spring 10through the intermediary ofracks 7c fixedonticircular bracket lb Thelatter carries rolls-la Which-move in a groove in a ring 70 and thelatter,'by means of adiametral shaft 10 sliding in two slots'k in theshaft a, actuates the spindle is of, the distributing valve.

-When in operation the valve k is constructed and adjusted in such amanner that, when the speed of the motor exceeds the normal, the valvemoves from right to left (Fig. 1) under the action of the governor so asto closegradually, first the .right hand ports a (Fig. 1) therebygradually cutting of! half the supply of gas, to the cylinders f. Itthen gradually closes the left hand ports Sward position (to the rightin Fig. 1) all admission is out off and a braking action is obtainedfrom the motor cylinders.

For ignition purposes a maigneto is pro- :vidd consistingof a fixed inuction ring Z having high and low tension coils and suitably supportedby the shaft a, about which imove two pairs of permanent magnets Z Zrevolving with the drum f to' which they can be fixed in any suitablemanner, or they p can be driven in any other manner by the rotarymovement of the motor. One of the terminals of the magneto is connectedto the metal of the motor; the other isconnected to two diametricallyopposite studs m mounted v p The latter is mount;- edwith friction onthe shaft a and can be on an ebonite ring m moved angularly around saidshaft in" spending cylinder and passes in frontlof' one of the studs mat the exact moment when ig- 1K nition should take place in thecylinder.- It

is obvious that the commutator for the 'ig-,

"When theengin 4 turn around the central, shaftfa owing tothe rollingaction of the satellites' fitotated bythe action of the pistons ejon'fthe crank arms on the wheels bfland thu act asanition can bearranged-differently "to'fl the I I I e isrunning,theicylinde'rsprovided with two arcs it having rack-teeth and engagingone on one side" and the other on the opposite side with the toothedextremities of a diametral shaft 11. on the centerof which is keyed ahelicoidal wheel a driven from a worm n. in the longitudinal directionby the two abutments a of the small frame or", and can be actuatedby therod n terminating in a square 72. forthe reception of a crank; By thismeans motion in one direction or the other can be transmitted to theshaft n? and thence through the racks-n to the drum g Abutments can beprovided to limit the ex tent of movement of the drum. Similar mechanismto that used to move the drum g angularly could-be used for instance torotate the ring m about the shaft 0 for the purpose described.

The spent gases exhaust in each cylinder at the end of the stroke of thepistons 6 through orifices f which are uncovered by the pistons at theend of their outward strokes.

Lubrication is effected by double-acting oil pumps 0, one of which ismounted-on the end-plate (Z of. each of the frames 03 and draws in oilcontinuously through valves 0 (by means of'piping not shown). The oil isdischarged by the pump through the ports 0 into the farthest ,recessesof the frame'd. behind the stays d whence it escapes either through,ducts provided in the shafts c Fig. 1, or past the rubbing surfaces ofthe engine under centrifugal force, thus constantly lubricating allparts during its pas sage.

The oil pumps 0' can be driven by means of a toothed rim orringo fixedon the shaft in and engaging with a. toothed wheel 0* whose shaftcarries a worm 0 engaging with a worm wheel 0 (Fig. 2) revolving on a.fixed shaft 0 Thewheel 0 carries an eccentric pin 0 on which are pivotedthe connecting rods 0 which transmit motion to the pump pistons 0 in thepump body. The suction valves 0 are placedin the bottoms of the body ofthe pump-' 0, through,

which. valves the oil is sucked into the pump cylinders 0 and dischargedthrough. the valves 0 to the parts to be oiled and to the recesses inthe framed. t

The action ofthe, motor will be easily understood after the abovedescription withoutfurther explanation.

It is obvious that the invention is not strictly limited to thearrangement shown The latter is held and described above since it isevidentthat certain modifications could be made as may appear necessaryor expedient. For instance if necessaryin the case of large cylfinders acompression-relief valve could be fitted which would open some instantsbefore the compression stroke of the cylinders.

I claim: 1. In an engine, the combination of a fixed central shaft;oppositely disposed casings revolubly mounted on said shaft; a framemounted wlthin each of said casings and surrounding said shaft; saidframes having the casings secured thereto; a pluthe shaft mounted onsaidcasings; a transmission gearing comprising intermeshing pinionsmounted on said shaft and casings;

and pistons operable in said. cylinders con.

ne'cted with said transmission gearing for imparting rotation'to thecasings; substantially as described. i

2. In an engine, the combination of a central shaft; oppositelydis'posed'casings revolubly mounted on said shaft; a frame mountedwithin each of said casings and.

said cylinders, substantially as described.

3. In an engine, the combination ofa fixed central shaft; oppositelydisposed casings revolubly mounted on said shaft; a frame mounted withinand secured to each of said casings; a plurality of cylinders disposedparallel with the central sham-and having the ends thereof engaging withand supported by said casings and said frames; a

plurality of bars disposed parallel with andbetween said cylinders, saidbars connecting said frames; pistons operable in each of said cylinders;and a transmission gearing v comprisin intermeshing pinions mounted onsaid shaft and said casings and connected with saidpistons to impartrotation to the casings, substantially as described.

4. In an engine, the combination ofa fixed central shaft; a pair ofoppositely disposed casings revolubly mounted on said shaft; an

annular framesecured'to each of said caslugs and surrounding the. shaft:said frames comprising each a plurality of radially disposed bars.connected by cross bars; a plurality' of cylinders disposed parallelwith thecentral shaft and carried by saidcasable in each of saidcylinders;

members of said frames; said ingsya pair of bevel pinions mounted withinthe casings on said shaft; pistons opera plurality of satellite gearsconnected to be actuated by said pistons and meshing with said pinion s;radially disposed stub shafts on which said satellite gears are mounted;said stub shafts being journaled on the connecting cross interineshinggears and pistons operable to impart rotation to said casings;and'nieans for charging said cylinders; substantially as described.

5. An explosion engine comprising'a plurality of motor cylinders, acentral fixed hollow shaft having fuel ports, said motor cylinders beingadapted to rotate about said fixed shaft, said cylinders having fueladmission ports adapted to register at the correct intervals with thefuel supply ports in said hollow shaft, a valve sliding within saidshaft'to control said fuel supply ports, said hollow shaft having airsupply ports and means actuated by the engine to move Copies of thispatent may be obtained for five cents each, byaddressing the Washington,D. 0.

said valve to control said fuel and air supply ports in the mannerdescribed.

In an internal combustion engine, the

combination of a fixed central and tubular pistons; ap-

for charging said cylinders with fuel; a

valve mounted in said shaft for controlling the fuel supply to saidcylinders; and a centrifugal governor associated with said casingoperable to automatically actuate said controlling valve, substantiallyas described.

, GABRIEL IOCHUM.

Witnesses:

LOUIS RINUY, DEAN B. MASON.

Commissioner of Patents,

